470uf 50V Through Hole 10×20 Electrolytic Capacitor (Pack of 250)

The 470uf 50V Through Hole 10×20 Electrolytic Capacitor is a polarized energy storage component designed for high-capacity filtering, decoupling, and power supply smoothing applications in electronic circuits. Professional electronics engineers, PCB designers, and industrial equipment manufacturers rely on these capacitors to stabilize voltage rails, reduce ripple current, and extend the lifespan of sensitive semiconductor components. This bulk pack of 250 units solves the critical problem of power supply noise and transient voltage spikes that can damage microcontrollers, amplifiers, and analog circuits operating in the 50V DC range.

Product Overview

Electrolytic capacitors operate through an electrochemical process where an oxide layer forms on the anode, creating a dielectric barrier with exceptionally high capacitance density compared to ceramic or film alternatives. The 470uf capacity at 50V rating makes this component ideal for main filter stages in switching power supplies, audio amplifiers, and industrial control systems where sustained energy storage and rapid charge/discharge cycles are required. The 10×20mm form factor provides a compact footprint while maintaining robust mechanical stability on through-hole PCB designs, making it compatible with legacy and modern circuit board layouts.

This pack of 250 units delivers superior value for prototype development, production runs, and educational institutions requiring consistent inventory of premium-grade capacitors. The through-hole lead configuration ensures reliable solder joints with standard wave soldering and hand assembly processes, eliminating the surface-mount compatibility issues that plague modern designs. Our authentic capacitors feature low ESR (Equivalent Series Resistance) characteristics, temperature-stable performance across -40°C to +85°C operating range, and extended service life ratings exceeding 2000 hours at rated voltage and temperature conditions.

Key Specifications

Specification	Details
Product Type	Polarized Electrolytic Capacitor Through Hole
Capacitance Value	470 microfarads (470uf)
Voltage Rating	50V DC
Physical Dimensions	10mm diameter x 20mm height
Lead Configuration	Through Hole with 5mm lead spacing
Temperature Range	-40°C to +85°C operating temperature
Equivalent Series Resistance	Typical 0.35 ohms at 1kHz
Ripple Current Rating	1.2A at 85°C, 100kHz
Quantity per Pack	250 units
Brand	OEM Grade Authentic
Origin	Original/Authentic
Warranty	7 days on manufacturing defects
Shipping	1-5 days from Bengaluru
Delivery	7-8 days across India
Support	24/7 via Email and WhatsApp

Key Features

• High Capacitance Density: 470uf capacity provides substantial energy storage for power supply filtering, reducing output ripple voltage to sub-100mV levels in regulated supplies
• Low ESR Performance: Equivalent series resistance of 0.35 ohms ensures minimal voltage drop during transient current spikes, protecting downstream logic circuits
• Robust Voltage Rating: 50V DC rating with safety margin suitable for unregulated supplies, automotive systems, and industrial equipment operating up to 48V nominal
• Bulk Pack Economics: 250-unit quantity reduces per-unit cost by 40-60% compared to individual purchases, ideal for production environments and educational labs
• Through Hole Reliability: Lead-based through-hole design eliminates solder joint failures common in surface-mount alternatives, ensuring 99.8% first-pass assembly yield
• Extended Service Life: 2000+ hour lifespan at rated conditions with minimal capacitance drift, reducing field failures and warranty claims in deployed systems

Applications and Use Cases

• Switching Power Supply Filtering: Primary filter capacitor stage in 24V/48V industrial DC supplies, reducing input ripple current and protecting transformer windings from harmonic stress
• Audio Amplifier Decoupling: Output filter stage in Class AB and Class D amplifiers, delivering clean power rails for 20-100W audio stages with THD below 0.05%
• Motor Control Circuits: Energy storage element in PWM motor drivers and variable frequency drives, smoothing DC bus voltage during acceleration transients
• Uninterruptible Power Supply (UPS) Systems: Main filter capacitor in 48V battery-backed systems, maintaining voltage stability during grid transitions and load step changes
• Industrial PLC and Controller Boards: Bulk capacitance for microcontroller power rails, preventing brown-out resets during I/O switching events and solenoid activation
• Prototype and Educational Development: Cost-effective bulk supply for electronics students, hobbyists, and design engineers building experimental circuits and test benches

How to Use

Before installing these electrolytic capacitors, verify circuit polarity by identifying the positive and negative leads. The longer lead indicates positive polarity and must connect to the higher potential node, while the shorter lead connects to ground or negative rail. Inspect the capacitor body for any visible damage, leakage, or manufacturing defects before soldering. Insert the leads through PCB holes with adequate spacing to prevent mechanical stress, maintaining minimum 5mm clearance from other components to ensure proper cooling airflow.

During soldering, apply heat for 3-4 seconds at 260°C using standard through-hole wave soldering or hand soldering techniques. Avoid exceeding 300°C or prolonged heating beyond 10 seconds, as excessive temperature can damage the internal oxide layer and increase ESR. After assembly, allow the board to cool naturally for 30 minutes before applying power. For optimal performance, mount capacitors vertically with leads perpendicular to the PCB surface, and ensure adequate spacing from high-temperature components like voltage regulators or power transistors. Always verify the voltage rating exceeds the maximum circuit voltage by at least 20% to maintain reliability margins.

Frequently Asked Questions

What is the difference between 470uf 50V and 470uf 25V capacitors?

The voltage rating indicates the maximum DC voltage the capacitor can safely withstand without dielectric breakdown. A 50V rated capacitor has a thicker oxide layer and can operate reliably in circuits up to 50V DC, while 25V units fail if exposed to voltages above 25V. The 50V variant provides superior safety margin for unregulated supplies and transient overvoltage protection. However, 50V capacitors typically have slightly higher ESR and larger physical dimensions compared to lower-voltage equivalents with identical capacitance values.

Can I use a 470uf 50V capacitor in place of a 470uf 25V capacitor?

Yes, you can safely substitute a higher voltage-rated capacitor in place of a lower-voltage unit. The 50V capacitor will function correctly in a 25V circuit with no performance degradation. However, the reverse substitution is dangerous and will cause immediate capacitor failure, potential circuit damage, and fire hazard. Always verify that the replacement capacitor voltage rating equals or exceeds the original specification before installation.

What does ESR mean and why does it matter in power supply applications?

Equivalent Series Resistance (ESR) represents the internal resistance of the capacitor at operating frequency, typically measured at 1kHz or 100kHz. Lower ESR values reduce voltage drop during rapid charge/discharge cycles, which is critical in switching power supplies where load current changes occur in microseconds. High ESR capacitors generate excessive heat dissipation and allow ripple voltage to pass through to the output, potentially causing microcontroller resets or audio noise. Our 470uf capacitors feature typical 0.35 ohm ESR, ensuring minimal ripple and heat generation in demanding applications.

How should I store unused capacitors from this 250-unit pack?

Store electrolytic capacitors in a cool, dry environment between 5°C and 40°C with relative humidity below 75%. Keep them in their original packaging or an anti-static bag to prevent moisture absorption and oxidation of leads. Avoid exposure to direct sunlight, extreme temperature fluctuations, and corrosive atmospheres. Electrolytic capacitors have a shelf life of approximately 2-3 years if stored properly, after which capacitance may drift and ESR may increase. Before using stored capacitors after extended periods, test with a capacitance meter to verify specifications remain within tolerance.

When will I receive my order?

Orders are dispatched within 1-5 business days from our Bengaluru warehouse. Delivery takes 7-8 days to most locations across India.

What is your return and warranty policy?

We offer a 7-day return policy on manufacturing defects only. Contact support within 7 days of receipt for free replacement or full refund. Not applicable for user damage or misuse.

Are bulk discounts available?

Yes, wholesale pricing for orders of 10 or more units. Contact our sales team via WhatsApp or email for a customized bulk quote.

Why Buy from The Engineer Store

• Genuine Products: Sourced directly from authorized distributors with authentication
• Expert Team: Our technical team validates every product before listing
• Fast Shipping: Dispatched within 1-5 days from our Bengaluru warehouse
• Pan-India Delivery: 7-8 days to Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata
• Payment Options: COD, UPI, credit/debit cards, net banking, EMI available
• Technical Support: 24/7 expert guidance via email and WhatsApp
• Returns: 7-day return policy on manufacturing defects only

Buy 470uf 50V Through Hole 10x20 Electrolytic Capacitor (Pack of 250) Online in India

Purchase the 470uf 50V Through Hole 10x20 Electrolytic Capacitor (Pack of 250) online at The Engineer Store, India's trusted source for genuine electronics. We deliver across Bengaluru, Mumbai, Delhi, Chennai, Hyderabad, Pune, Kolkata, Ahmedabad, Jaipur, and Surat. Get the best price on 470uf 50V Through Hole 10x20 Electrolytic Capacitor (Pack of 250) with fast shipping and expert support.

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